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    let one = (function () {
        function person() {
            this.name = '猪八戒';
            this.age = 1800;
            this.run = () => { }
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        let obj = null;
        return {
            getobj() {
                return obj ? obj : (obj = new person());
            }
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    let b = one.getobj();
    let c = one.getobj();

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